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Experimental Evaluation of Maximum Achievable Efficiency for Multiple-Receiver Inductive Power Transfer Systems Reona SUGIYAMA Quang-Thang DUONG Minoru OKADA Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E101-A No.11 pp.1861-1868 Publication Date: 2018/11/01 Online ISSN: 1745-1337 DOI: 10.1587/transfun.E101.A.1861 Type of Manuscript: PAPER Category: Analog Signal Processing Keyword: inductive power transfer, multiple-receiver, optimal loads, maximum achievable efficiency, kQ-product, Full Text: PDF>>
Summary: Optimal loads and maximum achievable efficiency for multiple-receiver inductive power transfer (IPT) system have been formulated by theoretical studies in literatures. This paper presents extended analysis on system behavior at optimal load condition and extensive S-parameter evaluation to validate the formulas. Our results confirm that at the optimal load condition, the system is in a resonance state; the impact of cross-coupling among receivers is completely mitigated; and the efficiency reaches its maximum expressed by an efficiency angle tangent, in an manner analogous to the well-known kQ-theory for single-receiver IPT. Our contributions do not lie in practical applications of multiple-receiver IPT but in establishing principles for design and benchmarking the system. | |||||
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